Added a small test for the timer function

-More needed once scaling is in effect

#test #story[16]

src/main/java/seng302/Model/Race.java

@@ -25,7 +25,7 @@ public abstract class Race implements Runnable {
 
 
     private int SLEEP_TIME = 100; //time in milliseconds to pause in a paced loop
-    private int PRERACE_TIME = 10000;//Integer.MAX_VALUE; //time in milliseconds to pause during pre-race
+    protected int PRERACE_TIME = 10000;//Integer.MAX_VALUE; //time in milliseconds to pause during pre-race
     private boolean timerEnabled = true;
 
     /**
@@ -80,7 +80,7 @@ public abstract class Race implements Runnable {
     }
 
 
-    private void countdownTimer() {
+    protected void countdownTimer() {
         long currentTime = System.currentTimeMillis();
         long startTime = currentTime + PRERACE_TIME;
         long minutes;
@@ -97,7 +97,9 @@ public abstract class Race implements Runnable {
             remainingSeconds = currentTimeInSeconds % 60;
             hours = minutes / 60;
             minutes = minutes % 60;
-            updateTime(String.format("Time until race starts: %02d:%02d:%02d", hours, minutes, remainingSeconds));
+            if (controller != null) {
+                updateTime(String.format("Time until race starts: %02d:%02d:%02d", hours, minutes, remainingSeconds));
+            }
             try {
                 timeLoopEnded = System.currentTimeMillis();
                 Thread.sleep(SLEEP_TIME - (timeLoopEnded - currentTime));
@@ -108,7 +110,7 @@ public abstract class Race implements Runnable {
         }
     }
 
-    private String calcTimer() {
+    protected String calcTimer() {
         long minutes;
         long currentTimeInSeconds;
         long remainingSeconds;
@@ -122,7 +124,7 @@ public abstract class Race implements Runnable {
         return String.format("Race clock: %02d:%02d:%02d", hours, minutes, remainingSeconds);
     }
 
-    private void updateTime(String time){
+    protected void updateTime(String time){
 
         Platform.runLater(() -> {controller.setTimer(time);});
     }

src/test/java/seng302/Model/RaceTest.java

@@ -98,4 +98,16 @@ public class RaceTest {
         assertTrue(unFinishedBoat.getDistanceTravelledInLeg() < 100);
 
     }
+
+    @Test
+    public void timerDelaysByHalfSecond() {
+        ConstantVelocityRace race = new ConstantVelocityRace(new BoatInRace[1], new ArrayList<>());
+        race.PRERACE_TIME = 500;
+
+        long timeStarted = System.currentTimeMillis();
+        race.countdownTimer();
+
+        assertTrue(System.currentTimeMillis() - timeStarted > 500);
+
+    }
 }